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Evaluation of quantum correlation functions from classical data: Anharmonic models
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10.1063/1.2274412
/content/aip/journal/jcp/125/7/10.1063/1.2274412
http://aip.metastore.ingenta.com/content/aip/journal/jcp/125/7/10.1063/1.2274412
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Time dependence of the real part of and at a temperature of for the anharmonic potential [Eq. (21)]. The solid circles are the exact quantum results and the dotted lines are the classical molecular dynamics simulation results. The solid and dashed lines are obtained by Eq. (24) with up to and order terms, respectively.

Image of FIG. 2.
FIG. 2.

The same as Fig. 1 except the temperature of . In the lower panel, the CMD results of Fig. 5 in Ref. 28 are added for comparison.

Image of FIG. 3.
FIG. 3.

The same as Fig. 1 except the temperature of .

Image of FIG. 4.
FIG. 4.

Time dependence of the real part of and at a temperature of for the anharmonic potential [Eq. (22)] with . The solid circles are the exact quantum results and the dotted lines are the classical molecular dynamics simulation results. The solid and dashed lines are obtained by Eq. (24) with up to and order terms, respectively.

Image of FIG. 5.
FIG. 5.

The same as Fig. 4 except the temperature of .

Image of FIG. 6.
FIG. 6.

Time dependence of the real part of at for two potentials [Eqs. (21) (upper) and (22) with (lower)]. The solid circles are the exact quantum results and the dotted lines are the classical molecular dynamics simulation results. The solid and dashed lines are obtained by Eq. (24) with up to and order terms, respectively. The dot-dashed lines are the cumulant approximation results with CMD of Figs. 3 and 5 and Ref. 25.

Image of FIG. 7.
FIG. 7.

Time dependence of the real part of at for two potentials [Eqs. (21) (upper) and (22) with (lower)]. The solid circles are the exact quantum results and the dotted lines are the classical molecular dynamics simulation results. The solid and dashed lines are obtained by Eq. (26) with up to and order terms, respectively. In the upper panel, the CMD results of Fig. 3(a) in Ref. 28 are added for comparison.

Image of FIG. 8.
FIG. 8.

The same as Fig. 7 except that and the CMD results of Fig. 3(b) in Ref. 28 are added.

Image of FIG. 9.
FIG. 9.

The same as Fig. 5 except in the quartic potential [Eq. (22)].

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/content/aip/journal/jcp/125/7/10.1063/1.2274412
2006-08-18
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Evaluation of quantum correlation functions from classical data: Anharmonic models
http://aip.metastore.ingenta.com/content/aip/journal/jcp/125/7/10.1063/1.2274412
10.1063/1.2274412
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